Heated exoskeleton?

Geo

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The rate of radiative heat loss or gain depends on . . . . .

But the rate of temperature change per unit of heat absorbed depends on the material. Mild steel and stainless steel have specific heats that are pretty close. 510.8 and 502.4 j/(kg-K) respectively (304 stainless) and thus both will absorb and retain heat for about the same time if the same thickness and painted the same color.
The rate of heat loss or gain depends on . . . Q = M x C x (Temp final - Temp Initial)

Can't compare exactly cos Tesla / Spacex haven't revealed details of their Stainless Steel recipe, but its reasonable to assume maybe 7% greater density for Stainless Steel than mild steel for a regular body panel.

As you mention, The specific heat j/kg/k is similar, but the mass is more than 5 times greater for Stainless Steel, just from the thickness, 0.6mm vs 3mm.

That is a significant difference in heat capacity / heat retention.

Temp change will be slower, but the retention of heat, and the opportunity for harm to the touch, and for a challenge to the HVAC will be far greater.
 
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ajdelange

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Clearly the impact of panel material on the heat pump will be minimal as there is significant thermal impedance between the skin and the interior and the load from that will be swamped by the load through the windshield and roof glass plus infiltration load.
 

DMC-81

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Clearly the impact of panel material on the heat pump will be minimal as there is significant thermal impedance between the skin and the interior and the load from that will be swamped by the load through the windshield and roof glass plus infiltration load.
I am hoping Tesla has a good solar heating and UV infiltration solution for all that glass. It looks totally awesome but without adequate mitigation in the bright southern sun, the glass would definitely contribute significantly to interior heating.

I had a C5 Corvette coupe with both tops, and in Florida, the tinted "glass" top would seem to burn a hole in the top of your head. I only used it briefly before switching to the solid top.

In my DeLorean, the black interior was sweltering in the summer and the already marginal AC system would struggle to cool it down. I tinted the windows with a version that included ceramic, even tinting the windshield with 80% (practically clear). That made a world of difference.

I suppose if the Tesla solution is not enough for where I live, I can always tint the glass on the CT with a thermal barrier.
 

Mini2nut

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I can already see people touching the exterior SS out of curiosity. I’m going to try this for trick cleaning my CT once I take delivery...

  • Juice from 4 lemons
  • 10 tbsp of hot water

  1. Mix together hot water and lemon juice in a small bowl
  2. Using a soft cloth, wipe down the stainless steel with lemon juice and water mixture going along with the grain of the metal
  3. Then wipe down again with a dry paper towel
  4. You're done!
use the leftover lemon along with some ice to freshen your garbage disposal or even remove stains from stainless steel in the sink.
 
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